Ice-cream freezer.



F. TYSON. ICE CREAM PREEZER.

APPLICATION FILED JULY 7, 1911.

WITNESSES P. TYSONl ICE CREAM PREEZER. APPLICATION FILED JULY v, 1911.

Patented Aug. 26, 1913.

2 SHBETS-SHEET 2.

INVENTOR FRANK TYsON TORNEY NITED STATES PATENT OFFICE.

FRANK 'IYSON, 0F CANTON, OHIO, ASSIGNOR TO THE TYSON COMPANY, OF CANTON,

OHIO, A- CORPORATION OF OHIO.

ICE-CREAM FREEZER.

Specification of Letters Patent.

Patented Aug. 26,1913.

To all whom t may concern.'

Be it known that I, FRANK TYsoN, a citizen of the United States, and aresident o-f Canton, Ohio, have. invented certain Improvements inIce-Cream Freezers, of which the following is a specification.

My invention consists of certain improvements in the ice cream freezerforming the subject of my Letters Patent No. 855,364, dated May 28,1907, the improvements relating particularly to that feature of thepatented invention which comprised the blade adjustable either to aposition parallel with the axis of the shaft, to serve as a beater, orto a position inclined in respect to the axis of the shaft, to serve asan ejector, the objectA of my present invention being to attain the sameresult by the use of a series of blades in place of the continuous bladeshown in the former patent. This object I attain in the mannerhereinafter set forth, reference being had to the accompanying drawings,in which- Figure 1 is a longitudinal sectional view of sufficient of anice cream freezer to illustrate my present invention;` Fig. 2 is a planview of part of the shaft of the freezer with the blades adjustedthereon to serve as beaters; Fig. 3 is a similar view showing saidblades adjusted to serve as an ejector; Fig. 4 is an enlarged view oft-he shaft and its blades, partly in end elevation and partly insection, the blades being adjusted to the position shown in Fig. 2; Fig.5 is an enlarged view of the shaft and one set of blades, the latterbeing adjusted to the position shown in Fig. 3; Figs. 6 and 7 areenlarged diagrams illustrating y the bladeshifting devices in the twoeXtreme positions, and Fig. 8 is a view similar to Fig. 3 butillustrating a modicationof my invention.

In Fig. 1 of the drawing, 1 represents the bed of the machine, uponwhich is mounted the cylindrical freezer casing comprising oppositeheads 2 and'3 and a triple shell composed of cylindrical members 4, 5and 6, the heads 2 and 3 providing bearings for the central shaft 7which is rotated in any suitable way, and the head 3 being also providedwith a feed hopper 9 and a delivery nozzlc 10, the latter having a valve11 which is engaged by one arm of a lever 12, another arm of said leverengaging a grooved collar 13 on a rod 14, centrally disposed in thehollow shaft 7 and caused to rotate therewith in any suitable way whichwill not restrict its independent longitudinal movement, the means shownin the present instance for effecting this object being a transversepinl 15 carried by the rod and entering slots 16 formed in the shaft 7,as shown in Fig. 1. The shaft 7 is provided with blades which areintended to actv either as beaters or as ejectors for the frozen cream,two sets of these blades being shown in the present instance, but asthey are alike in construction and operation a description of one set ofthem will suliice. Each set is composed of a number of blades 20 and mayconsist of any desired number of these blades, four being shown in thepresent instance. Each blade 20 has a central stem 21 projectingradially from the'shaft 7, and mounted so as to be free' to rotate onits aXis ina bearing plug 22 screwed into an opening in the shaft,outward movement.

of the blade being prevented by a head 23 'locatedat the inner end ofthe stem 21 and .ttmg 1n a socket formed in the inner por- .tion of thebearing plug 22, as shown in Fig. 4. Inward movement of either blade isprevented by cont-ac.J of itsh'ead 23 with the cent-ral rod 14 ini theshaft, and movement of partial' rotation of each stem 21 around its axiscan be effected by means of a pin 24 projecting from the rod 14 andentering an inclined slot 2,5 formed inv the inner face of the head 23,as shown in Figs. 6 and 7 The stems 21 of the blades 20 project from theshaft 7 at different angles, as shown in Figs. 4 and 5, and it will beunderstood that the pins 24 of the rod 14 arelikewisedisposed atdifferentv angles so that" each pin will engage with the slotted head ofits corresponding stem 21' at a point to one side of the axial center ofthe head', whereby longit'udinal movement of the rod 14 willl effect apartial turningl movement of the slotted head 23 andv of the stem 21-and' blade 20 corresponding thereto.

When the rod 14 is at one eXtreme of its movement the slotted heads 23and'pins 24 may bear the relation to each other shown in Fig. 6, whichrelation may correspond with an adjustment of the/blades 20 intoposition `tparallel with one another and with the axial line of theshaft 7, as shown in Fig. 2, the blades, when in this position servingas beaters for the contents of the freezing vessel.- Movement of: therod' 14 y yso to its other extreme' position causes the slotted heads 23and pins 24 to assume the relation indicated in Fig. 7, which macorrespo-nd with an adjustment of t-he blades 20 into positions diagonalto the axial line of the shaft, as shown in F ig. 3, whereby the variousblades combine to form a spiral blade which will act as an ejector forthe frozen cream, the same movement of the rod which effected thisadjustment of the blades being accompanied by an opening movement of thevalve ll which normally closes the discharge nozzle l0 of the machine,while movement of the rod intended to restore the blades to beatingposition is attended by the closing of said valve 1l.

lllhile I prefer to dispose the stems of the various blades so that theywill project at different angles from the shaft 7 this is not essentialto the proper carrying out of my invention, as all of said stems may, ifdesired, be arranged on the axial line of the shaft, as shown forinstance at 21a in Fig. 8, partial turning movement of the stemseffecting adjustment of the blades 2O either to the ejecting positionshown by full lines in Fig. 8 or to the beating posit-ion shown bydotted lines in said figure.

I claim:

l. An ice cream freezer shaft having a plurality of blades disposed insuccession along the shaft and adjustable into different positions inrespect to the axial line of the shaft, 'and means for effectingsimultaneous adjustment of all of said blades.

2. An ice cream freezer shaft having a plurality of blades disposed insuccession along the shaft and adjustable into different positions inrespect to-the axial line of the shaft, and means contained Within theshaft for effecting such adjustment of the blades.

3. An ice cream freezer shaft having a plurality of projecting stems,each with a blade at its outer end, and means for effecting partialrotation of each of said stems around its axis.

4. An ice cream freezer shaft having a plurality of stems projectingtherefrom and turning in bearings on the shaft, and devices within theshaft for effecting partial rotation of said stems.

5. An ice cream freezer shaft provided with stems projecting atdifferent angles therefrom, and each having a blade at its outer end,said blade being adjustable into different positions in respect to theaxial line of the shaft.

- 6. An ice cream freezer shaft having a plurality of stems projectingtherefrom, and mounted in pivotal bearings on the shaft, each of saidstems carrying at its outer end a blade and said blades being sodisposed that when their stems are in one position said blades willbeparallel with each other and with the axial line of the shaft, and whenthe stems are in the other po-sition said blades will be parallel witheach other but inclined in respect to the axial line of the shaft.

An ice cream freezer shaft having a plurality of stems projectingtherefrom at different angles and each pivotally mounted in a bearing onthe shaft, each stem having a blade at its outer end, and means forturning the stems whereby the blades may be adjusted to form a spiralblade, or to different planes parallel with oneanothcr and with theaxial line of the shaft.

8. An ice cream freezer shaft having a detachable plug therein, a bladehaving a stem free to turn in said plug, and means within the shaft forengaging the inner end of said stem to effect partial rotation of thesame.

9. An ice cream freezer shaft having a detachable plug therein, and ablade having a stem mounted so as to be free to turn in said plug andhaving a head at the inner end for contact with said plug.

10. An ice cream freezer detachable plug therein, a stem mounted so asto be free to turn in said plug and having. at its inner end, a headcontacting with the plug, a central rod in said shaft also contactingwith the head of the stem, and means whereby longitudinal movement ofsaid rod effects partial turning movement of the stem in its bearing.

1l. An ice cream freezer shaft having a blade with stem mounted so as tobe free to turn in a bearing on said'shaft and having a transverse slotat its inner end, and a rod contained within the shaft, and having aprojecting pin for engagement with said slot whereby the longitudinalmovement of the shaft eifects partial rotary movement of the stem in itsbearing.

l2. An ice cream freezer shaft having a blade with a stem mounted so asto be free to turn in a bearing on said shaft, a longitudinal rodcontained within the shaft and engaging the latter so as to be caused torotate therewith but free to move longitudinally, and means whereby saidlongitudinal movement ofthe rod is caused to effect par tial rotatingmovement of the stem of the blade.

13. An ice cream plurality of stems projecting therefrom at differentangles, each stem carrying at its outer end a blade and being rotatablymounted in a bearing on the shaft at its inner end, a rod containedwithin said shaft, and means whereby movement of said rod is transmittedto the stems of the blades to causevpartial rotative movement of each ofthe latter in its bearing. i

14. In an apparatus of the character specishaft having a blade having afied, a receptacle for the material to be and a shaft mounted to rotatein frozen,

freezer shaft having a said receptacle, said shaft provided with aseries of blades projecting at an angle therefrom to form a beater andmeans for adjusting the angularity of said blades during the operationof the machine to convert the beater into a conveyer.

15. In an apparatus of the character specified, a rotary beatercomprising a shaft, with meansfor rotating same on its longitudinalaxis, and a series of blades mounted on said shaft at right angles tosaid axis, and provided with means for simultaneously adjusting theangularity of the blades to convert the beater into a conveyer.

y16. ice creaml freezer shaft having a blade with a stem mounted so asto be free to turn in a bearing on said shaft, a longitudinal rodcontained within the shaft and engaging the stem, and means wherebylongitudinal movement of the rod 4is causedi to e'ect partial rotatingmovement of the stern of the blade.

In testimony whereof, I have signed my name to this specification in thepresence of two subscribing witnesses.

FRANK TYSON.

Witnesses:

KATE A. BEADLE, HAMILTON D. TURNER.

